Adds GitHub Actions workflows

Author: scalvert

.github/workflows/ci.yml

@@ -0,0 +1,60 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build:
+    name: Build and Test
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        go-version: ['1.19', '1.20', '1.21']
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ matrix.go-version }}
+          cache: true
+
+      - name: Install dependencies
+        run: go mod download
+
+      - name: Build
+        run: go build -v ./...
+
+      - name: Run tests
+        run: go test -v ./... -race -coverprofile=coverage.txt -covermode=atomic
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          file: ./coverage.txt
+          fail_ci_if_error: false
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.21'
+          cache: true
+
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v4
+        with:
+          version: latest
+          args: --timeout=5m

.golangci.yml

@@ -0,0 +1,38 @@
+linters:
+  enable:
+    - gofmt
+    - govet
+    - goimports
+    - gosimple
+    - staticcheck
+    - errcheck
+    - ineffassign
+    - typecheck
+    - misspell
+    - gosec
+    - unconvert
+    - goconst
+    - unparam
+
+linters-settings:
+  govet:
+    enable-all: true
+  gocyclo:
+    min-complexity: 15
+  goconst:
+    min-len: 2
+    min-occurrences: 2
+  misspell:
+    locale: US
+
+issues:
+  exclude-rules:
+    - path: _test\.go
+      linters:
+        - gosec
+        - errcheck
+  max-issues-per-linter: 0
+  max-same-issues: 0
+
+run:
+  timeout: 5m